The only criteria to get this to work are that you need to have the "5 Newest League Polls" Home Page module somewhere on your home page and you need to have the following script in your footer.
Here is the code that must be placed in your footer:
With this code when an owner visits the site and there are active polls in which they have not voted in they will get a poll popup reminding them to vote in the polls.
Great for leagues that have polls created for trades.
Let me know of any issues.
EDITED TO ADD
While logged in as commissioner you will not see a popup. The popup is only for team owners that haven't voted in a poll.